96923899621 has 4 divisors (see below), whose sum is σ = 96924560044. Its totient is φ = 96923239200.

The previous prime is 96923899609. The next prime is 96923899643. The reversal of 96923899621 is 12699832969.

It is a happy number.

96923899621 is a nontrivial binomial coefficient, being equal to C(440282, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12699832969 = 7691 ⋅1651259.

It can be written as a sum of positive squares in 2 ways, for example, as 36361150596 + 60562749025 = 190686^2 + 246095^2 .

It is a 3-Lehmer number, since φ(96923899621) divides (96923899621-1)³.

It is a cyclic number.

It is not a de Polignac number, because 96923899621 - 2¹⁹ = 96923375333 is a prime.

It is a deceptive number, since it divides R_96923899620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96923899601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 440281.

It is an arithmetic number, because the mean of its divisors is an integer number (24231140011).

It is a Poulet number, since it divides 2^96923899620-1.

Almost surely, 2^96923899621 is an apocalyptic number.

96923899621 is the 440281-st triangular number and also the 220141-st hexagonal number.

96923899621 is the 146761-st centered nonagonal number.

It is an amenable number.

96923899621 is a deficient number, since it is larger than the sum of its proper divisors (660423).

96923899621 is a wasteful number, since it uses less digits than its factorization.

96923899621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660422.

The product of its digits is 22674816, while the sum is 64.

The spelling of 96923899621 in words is "ninety-six billion, nine hundred twenty-three million, eight hundred ninety-nine thousand, six hundred twenty-one".